arXiv 0705.24062007-05astro-phhep-ph

Decaying warm dark matter and neutrino masses

M. Lattanzi, J. W. F. Valle

备注：: 4 pages, 3 figures. Replaced to match published version. Minor changes made to address referees' comments. References added
发表信息：: Phys.Rev.Lett.99:121301,2007
DOI：: 10.1103/PhysRevLett.99.121301

英文摘要：

Neutrino masses may arise from spontaneous breaking of ungauged lepton number. Due to quantum gravity effects the associated Goldstone boson - the majoron - will pick up a mass. We determine the lifetime and mass required by cosmic microwave background observations so that the massive majoron provides the observed dark matter of the Universe. The majoron DDM scenario fits nicely in models where neutrino masses arise a la seesaw, and may lead to other possible cosmological implications.

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